CN105000908B - A kind of rare earth modified Maifanitum powder body with electric conductivity and preparation method thereof - Google Patents
A kind of rare earth modified Maifanitum powder body with electric conductivity and preparation method thereof Download PDFInfo
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- CN105000908B CN105000908B CN201510375967.2A CN201510375967A CN105000908B CN 105000908 B CN105000908 B CN 105000908B CN 201510375967 A CN201510375967 A CN 201510375967A CN 105000908 B CN105000908 B CN 105000908B
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Abstract
The invention discloses a kind of rare earth modified Maifanitum powder body with electric conductivity and preparation method thereof, described rare earth modified Maifanitum powder body is prepared from by Maifanitum and rare earth element, and rare earth element content is at 9 ~ 10wt.%.Concrete preparation method is as follows: (1) oozes after stove is warming up to design temperature 650～700 DEG C until expansion, instills methanol solution, to get rid of the air in stove in stove；(2) Maifanitum powder body is placed in expansion to ooze in stove；(3) with a speed instillation expansion sepage 4～5h containing rare earth element of 60～80 per minute in stove, i.e. can get Maifanitum conducting powder.Maifanitum powder body material is expanded by the method that the present invention uses the expansion of gas phase rare earth chemistry heat to ooze oozes the rare earth elements such as La, Ce, Er, through XRD analysis, confirm that rare earth element has penetrated in Maifanitum powder body material, and with the constituent element generation chemical reaction of Maifanitum, generate the compound containing rare earth element, cause the electric conductivity of Maifanitum powder body to be obviously enhanced.
Description
Technical field
The present invention relates to a kind of novel inorganic functional material and synthetic method thereof, particularly to a kind of rare earth modified Maifanitum conducting powder material and preparation method thereof.
Background technology
As a kind of important functional material, have the powder body material of electric conductivity be widely used in coating, adhesive, electronics, electrical equipment, aviation, chemical industry, print, pack, the field such as boats and ships, military project, be used for producing electrically-conducting paint, antistatic coating, electroconductive binder, conductive plastics, conductive rubber, conductive electrostatic paper, electronic component, electrical equipment shell, printed circuit board etc..And now widely used metal dust, white carbon black, graphite, carbon fiber, foil or fiber, metal-oxide etc. make its application be subject to certain restrictions due to factors such as oxidation, cost and processing difficulties.Exploitation has the novel conductive powder material of certain conducting function, has important application value.
China's maifanshi resource is the abundantest, Maifanitum be a kind of to biological nontoxic, harmless and there is certain bioactive complex mineral rock, its main chemical compositions is inorganic silicon-aluminum hydrochlorate, including SiO2、Al2O3、Fe2O3、FeO、MgO、CaO、K2O、Na2O、TiO2、P2O5, MnO etc..Pure Maifanitum material is good insulating body, has porous and huge surface area, it is possible to absorbs, decompose, remove various material, and adsorption rate is 20000 times of equal surface area activated carbon.Maifanitum have stronger absorbability to harmful several units such as cadmium, hydrargyrum, arsenic, lead；The Organic substances such as chloride, cyanide, residues of banned pesticides, leucoaurin also had detergent power；The antibacterial such as White staphylococcus, escherichia coli and the harmful microorganism such as pathogenic bacteria and some virus also there is preferable elimination effect simultaneously.Utilize the absorbability that Maifanitum is superpower, if making it possess certain electric conductivity, it is applied to antistatic coating and shielding coating field, it will be made not only to have antistatic and anti-electromagnetic radiation function, the most also there is elimination environmental pollution, safeguard the important function such as health.
Summary of the invention
It is an object of the invention to provide a kind of rare earth modified Maifanitum powder body with electric conductivity and preparation method thereof, modified by rare-earth penetration, significantly reduce the resistivity of Maifanitum material, make it have certain electric conductivity, there is again the features such as the absorption of this stiffness of the body of Maifanitum, antioxidation, it is thus achieved that the novel conductive powder body material that a kind of combination property is good simultaneously.
It is an object of the invention to be achieved through the following technical solutions:
A kind of rare earth modified Maifanitum powder body with electric conductivity, is prepared from by Maifanitum and rare earth element, and rare earth element content is at 9 ~ 10wt.%.
A kind of above-mentioned rare earth modified Maifanitum raw powder's production technology with electric conductivity, comprises the steps:
(1) ooze after stove is warming up to design temperature 650～700 DEG C until expansion, in stove, instill methanol solution, to get rid of the air in stove；
(2) Maifanitum powder body is placed in expansion to ooze in stove；
(3) with a speed instillation expansion sepage 4～5h containing rare earth element of 60～80 per minute in stove, i.e. can get Maifanitum conducting powder.
In the present invention, the described expansion sepage containing rare earth element is dissolved in methanol by the hydrochlorate of rare earth element and prepares.
In the present invention, the rare earth element that described expansion sepage contains is La, Ce, Er etc..
In the present invention, the described concentration expanding sepage containing rare earth element is 4 ~ 5wt.%.
In the present invention, the described mass ratio expanding sepage and Maifanitum containing rare earth element is 20 ~ 30:1.
The rare earth modified Maifanitum conductive powder body that the present invention is obtained has a characteristic that
(1) use gas phase rare earth chemistry heat to expand the method oozed and the rare earth elements such as La, Ce, Er are oozed in the expansion of Maifanitum powder body material, through XRD analysis, confirm that rare earth element has penetrated in Maifanitum powder body material, and with the constituent element generation chemical reaction of Maifanitum, generate the compound containing rare earth element, cause the electric conductivity of Maifanitum powder body to be obviously enhanced.
(2) make the room temperature resistivity of Maifanitum powder body material from 10 through rare-earth penetration12W m drops to 104W m, electric conductivity is substantially strengthened, and has been adapted for preparing antistatic coating and shielding coating.
(3) the rare earth modified Maifanitum conducting powder obtained and metal series conducting powder ratio, have the features such as strong absorption, antioxidation.
(4) with rare-earth penetration modification BaTiO3Series of conductive powder body is compared, and has the feature such as aboundresources, low cost.
(5) Maifanitum has porous and huge surface area, it is possible to absorbs, decompose, remove various harmful substance, has the function eliminating environmental pollution, good combination property concurrently, and cost performance is high, and the market competitiveness is strong.
(7) can be widely applied to the electronic applications such as mobile phone, notebook computer, medical apparatus and instruments, electronic instrument, shielding machine room, Aero-Space, preferable radioprotective, anti-electromagnetic wave interference effect after using, can be reached.It addition, rare earth modified Maifanitum electrical-conductive nanometer powder, except the development for electrically-conducting paint, it is also possible to be applied to the fields such as electronic device, motor, electronic equipment.
Accompanying drawing explanation
Fig. 1 is the XRD figure of the rare earth modified Maifanitum conducting powder prepared by the embodiment of the present invention 1.
Fig. 2 is the SEM figure of the rare earth modified Maifanitum conducting powder prepared by the embodiment of the present invention 2.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme is further described; but it is not limited thereto; every technical solution of the present invention is modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention, all should contain in protection scope of the present invention.
Embodiment
1
:
Ooze after stove is warming up to 700 DEG C until expansion, in stove, instill methanol 10min, to get rid of the air in stove；Then Maifanitum powder body is placed in expansion to ooze in stove；In stove, the speed of dripping with 60 per minute instills the expansion sepage 5h containing La element containing 5wt.%, i.e. can get medical stone powder body conducting powder, and its room temperature resistivity is 4.0 × 104 Ω m, X-ray diffraction (XRD) spectrogram is as shown in Figure 1.From figure 1 it appears that rare earth element has penetrated into Maifanitum powder body, and with the constituent element generation chemical reaction of Maifanitum, generate LaTi9O24Etc. the new compound containing rare earth element, cause Maifanitum powder body to obtain electric conductivity and be obviously enhanced.
Embodiment
2
:
Ooze after stove is warming up to 700 DEG C until expansion, in stove, instill methanol 10min, to get rid of the air in stove；Then Maifanitum powder body is placed in expansion to ooze in stove；In stove, the speed of dripping with 80 per minute instills expansion sepage 4 h containing Er element containing 4wt.%, i.e. can get medical stone powder body conducting powder, and its room temperature resistivity is 7.2 × 104Ω m, scanning electron microscope (SEM) figure of obtained powder body is as shown in Figure 2.From figure 2 it can be seen that powder granule is relatively thin, hole is obvious.Analyzing through power spectrum (EDS), in rare earth modified Maifanitum conductive powder body, the content of Er is 9.69 wt.%.
Embodiment
3
:
Ooze after stove is warming up to 650 DEG C until expansion, in stove, instill methanol 10min, to get rid of the air in stove；Then Maifanitum powder body is placed in expansion to ooze in stove；In stove, the speed of dripping with 60 per minute instills the expansion sepage 5h containing Ce element containing 5wt.%, i.e. can get medical stone powder body conducting powder, and its room temperature resistivity is 1.2 × 104 Ω·m.Its pattern is similar to Figure 2.
Claims (6)
1. a rare earth modified Maifanitum powder body with electric conductivity, it is characterised in that described rare earth modified Maifanitum powder body is prepared from by Maifanitum and rare earth element, and rare earth element content is at 9 ~ 10wt.%.
The rare earth modified Maifanitum powder body with electric conductivity the most according to claim 1, it is characterised in that described rare earth element is La, Ce or Er.
3. the rare earth modified Maifanitum raw powder's production technology with electric conductivity described in a claim 1, it is characterised in that described method step is as follows:
(1) ooze after stove is warming up to design temperature 650～700 DEG C until expansion, in stove, instill methanol solution, to get rid of the air in stove；
(2) Maifanitum powder body is placed in expansion to ooze in stove；
(3) with a speed instillation expansion sepage 4～5h containing rare earth element of 60～80 per minute in stove, i.e. can get Maifanitum conducting powder, the described expansion sepage containing rare earth element is dissolved in methanol by the hydrochlorate of rare earth element and prepares.
The rare earth modified Maifanitum raw powder's production technology with electric conductivity the most according to claim 3, it is characterised in that the described mass ratio expanding sepage and Maifanitum containing rare earth element is 20 ~ 30:1.
5. according to the rare earth modified Maifanitum raw powder's production technology with electric conductivity described in claim 3 or 4, it is characterised in that the described concentration expanding sepage containing rare earth element is 4 ~ 5wt.%.
6. according to the rare earth modified Maifanitum raw powder's production technology with electric conductivity described in claim 3 or 4, it is characterised in that described rare earth element is La, Ce or Er.
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| CN201510375967.2A CN105000908B (en) | 2015-07-01 | 2015-07-01 | A kind of rare earth modified Maifanitum powder body with electric conductivity and preparation method thereof |
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| CN201510375967.2A CN105000908B (en) | 2015-07-01 | 2015-07-01 | A kind of rare earth modified Maifanitum powder body with electric conductivity and preparation method thereof |
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| CN106010107A (en) * | 2016-06-24 | 2016-10-12 | 齐齐哈尔市碾子山区麦饭石研究所 | Modified medical stone conducting coating with antistatic and adsorption functions and preparation method of modified medical stone conducting coating |
| CN111593609A (en) * | 2020-04-29 | 2020-08-28 | 佛山市高明金湘坊装饰材料有限公司 | Environment-friendly decorative paper and manufacturing method thereof |
| CN111490653B (en) * | 2020-05-06 | 2021-07-06 | 东莞市畅科电机有限公司 | Sealing treatment method for coreless motor |
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| CN1583666A (en) * | 2004-06-09 | 2005-02-23 | 哈尔滨工业大学 | Method for preparing conductive titanate powder by rare earth gas-phase diffusive permeation |
| CN102219504B (en) * | 2011-04-11 | 2013-05-08 | 哈尔滨工业大学 | Method for synthesizing BaTiO3 conductive nano powder by one step by diffusing into gel through rare earth |
| CN102503411B (en) * | 2011-11-07 | 2013-03-20 | 哈尔滨工业大学 | Method for preparing BaTiO3 conductive ceramic powder by taking water as medium through rare earth phase-phase permeation |
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Effective date of registration: 20210723 Address after: 161000 No. 293, Fanrong Road, Nianzishan District, Qiqihar City, Heilongjiang Province Patentee after: Qiqihar Nianzishan e-commerce Incubation Center Address before: 161000 No. 43, Fanrong Road, Nianzishan District, Qiqihar City, Heilongjiang Province Patentee before: QIQIHAR CITY NIANZI MOUNTAIN AREA MAIFANSHI INSTITUTE |